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            | 
                    Closing price on 10/16/2017
                 |  |  
    
        |           
                
                    | Open | 71.30 |  
                    | High | 72.00 |  
                    | Low | 71.20 |  
                    | Volume | 16,892 |  
                    | Split-adjusted Price | 25.21 |  
                
             | 
 |  NTP Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/16/2017 | -0.50 / -0.70% | 71.30 | 72.00 | 71.20 | 71.30 | 71.82 | 25.21 | 16,892 |   |  
            | 10/13/2017 | -0.10 / -0.14% | 71.90 | 72.50 | 70.10 | 71.80 | 71.50 | 25.38 | 17,300 |   |  			
            | 10/12/2017 | +0.10 / +0.14% | 71.50 | 72.00 | 70.80 | 71.90 | 71.22 | 25.42 | 9,051,951 |   |  
            | 10/11/2017 | +0.30 / +0.42% | 72.00 | 72.00 | 71.50 | 71.80 | 71.84 | 25.38 | 12,955 |   |  			
            | 10/10/2017 | -0.30 / -0.42% | 69.10 | 72.00 | 69.10 | 71.50 | 71.39 | 25.28 | 27,310 |   |  
            | 10/9/2017 | -0.20 / -0.28% | 72.00 | 72.20 | 71.10 | 71.80 | 71.92 | 25.38 | 5,359,081 |   |  			
            | 10/6/2017 | 0.00 / 0.00% | 72.30 | 72.30 | 71.90 | 72.00 | 71.96 | 25.46 | 20,800 |   |  
            | 10/5/2017 | -0.40 / -0.55% | 72.20 | 72.40 | 70.10 | 72.00 | 71.84 | 25.46 | 139,118 |   |  			
            | 10/4/2017 | +0.40 / +0.56% | 72.20 | 72.40 | 71.90 | 72.40 | 72.22 | 25.60 | 72,820 |   |  
            | 10/3/2017 | -0.50 / -0.69% | 72.50 | 72.50 | 71.30 | 72.00 | 71.99 | 25.46 | 36,900 |   |  			
            | 10/2/2017 | +1.00 / +1.40% | 70.00 | 73.40 | 69.10 | 72.50 | 72.60 | 25.63 | 98,112 |   |  
            | 9/29/2017 | 0.00 / 0.00% | 72.00 | 72.00 | 70.10 | 71.50 | 70.89 | 25.28 | 43,252 |   |  			
            | 9/28/2017 | +0.30 / +0.42% | 72.00 | 72.20 | 71.20 | 71.50 | 71.89 | 25.28 | 1,886,353 |   |  
            | 9/27/2017 | +1.90 / +2.74% | 69.70 | 73.50 | 69.70 | 71.20 | 71.74 | 25.17 | 3,269,480 |   |  			
            | 9/26/2017 | +0.70 / +1.02% | 69.90 | 69.90 | 68.80 | 69.30 | 69.25 | 24.50 | 899,776 |   |  
            | 9/25/2017 | -0.40 / -0.58% | 70.00 | 70.10 | 68.60 | 68.60 | 69.29 | 24.25 | 1,104,821 |   |  			
            | 9/22/2017 | 0.00 / 0.00% | 69.90 | 69.90 | 67.00 | 69.00 | 68.83 | 24.39 | 14,666 |   |  
            | 9/21/2017 | +0.50 / +0.73% | 74.00 | 74.00 | 69.00 | 69.00 | 69.43 | 24.39 | 24,800 |   |  			
            | 9/20/2017 | +1.30 / +1.93% | 69.40 | 69.40 | 67.60 | 68.50 | 67.73 | 24.22 | 7,200 |   |  
            | 9/19/2017 | -1.80 / -2.61% | 68.00 | 68.00 | 66.50 | 67.20 | 67.11 | 23.76 | 13,363 |   |  			
            | 9/18/2017 | +0.50 / +0.73% | 70.00 | 70.00 | 68.80 | 69.00 | 69.20 | 24.39 | 4,400 |   |  
            | 9/15/2017 | 0.00 / 0.00% | 68.50 | 68.50 | 68.50 | 68.50 | 68.50 | 24.22 | 3,500 |   |  			
            | 9/14/2017 | 0.00 / 0.00% | 68.50 | 68.50 | 68.50 | 68.50 | 68.50 | 24.22 | 9 |   |  
            | 9/13/2017 | -1.00 / -1.44% | 72.00 | 72.00 | 68.50 | 68.50 | 68.83 | 24.22 | 11,140 |   |  			
            | 9/12/2017 | +0.10 / +0.14% | 69.50 | 69.50 | 69.50 | 69.50 | 69.50 | 24.57 | 3,648 |   |  
            | 9/11/2017 | -0.40 / -0.57% | 69.00 | 69.50 | 69.00 | 69.40 | 69.20 | 24.54 | 19,446 |   |  			
            | 9/8/2017 | +0.80 / +1.16% | 69.50 | 69.90 | 69.00 | 69.80 | 69.75 | 24.68 | 18,241 |   |  
            | 9/7/2017 | +0.90 / +1.32% | 72.00 | 72.00 | 69.00 | 69.00 | 70.36 | 24.39 | 3,105 |   |  			
            | 9/6/2017 | +0.10 / +0.15% | 67.00 | 68.10 | 67.00 | 68.10 | 67.74 | 24.08 | 19,886 |   |  
            | 9/5/2017 | +1.00 / +1.49% | 65.20 | 68.90 | 65.20 | 68.00 | 66.41 | 24.04 | 6,908 |   |  |